Hi William,
I tried to fix the bug and provided a patch at
http://trac.sagemath.org/sage_trac/attachment/ticket/14587/
However, I cannot test it as the M2 experimental package won't build (on my
machine).
On Tuesday 14 May 2013, William Stein wrote:
> Hi,
>
> I actually tried to use something marked #optional, hence not tested,
> hence broken, and it was broken:
>
> P.<a,b,c> = PolynomialRing(ZZ,3)
> I = sage.rings.ideal.Katsura(P,3) # regenerate to prevent caching
> I.groebner_basis('macaulay2:gb') # optional - macaulay2
>
> Error in lines 3-3
> Traceback (most recent call last):
> File "/mnt/home/lFqBXyPI/.sagemathcloud/sage_server.py", line 412, in
> execute exec compile(block, '', 'single') in namespace, locals
> File "", line 1, in <module>
> File "cachefunc.pyx", line 1462, in
> sage.misc.cachefunc.CachedMethodCaller.__call__
> (sage/misc/cachefunc.c:7556)
> File "cachefunc.pyx", line 2044, in
> sage.misc.cachefunc.CachedMethod._instance_call
> (sage/misc/cachefunc.c:10040)
> File
> "/usr/local/sage/sage-5.9/local/lib/python2.7/site-packages/sage/rings/pol
> ynomial/multi_polynomial_ideal.py", line 3840, in groebner_basis
> gb = self._groebner_basis_macaulay2(prot=prot, *args, **kwds)
> TypeError: _groebner_basis_macaulay2() got an unexpected keyword argument
> 'prot'
Cheers,
Martin
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